fix

Author: KSDaemon

packages/cubejs-api-gateway/src/gateway.ts

@@ -625,12 +625,13 @@ class ApiGateway {
       const compilerApi = await this.getCompilerApi(context);
       const preAggregations = await compilerApi.preAggregations();
 
+      const timezones = this.scheduledRefreshTimeZones ? await this.scheduledRefreshTimeZones(context) : [];
       const preAggregationPartitions = await this.refreshScheduler()
         .preAggregationPartitions(
           context,
           normalizeQueryPreAggregations(
             {
-              timezones: this.scheduledRefreshTimeZones ? this.scheduledRefreshTimeZones(context) : [],
+              timezones: timezones.length > 0 ? timezones : undefined,
               preAggregations: preAggregations.map(p => ({
                 id: p.id,
                 cacheOnly,
@@ -652,9 +653,10 @@ class ApiGateway {
   ) {
     const requestStarted = new Date();
     try {
+      const timezones = this.scheduledRefreshTimeZones ? await this.scheduledRefreshTimeZones(context) : [];
       query = normalizeQueryPreAggregations(
         this.parseQueryParam(query),
-        { timezones: this.scheduledRefreshTimeZones ? this.scheduledRefreshTimeZones(context) : [] }
+        { timezones: timezones.length > 0 ? timezones : undefined }
       );
       const orchestratorApi = await this.getAdapterApi(context);
       const compilerApi = await this.getCompilerApi(context);